The block rests at a distance of 2 m from the center of the platform. If the coefficient of static friction between the block and the platform is μs = 0.3, determine the maximum speed which the block can attain before it begins to slip. Assume the angular motion of the disk is slowly increasing.
Prob. F13-7
Learn your wayIncludes step-by-step video
Chapter 13 Solutions
EP ENGR.MECH.:DYNAMICS-REV.MOD.MAS.ACC.
Additional Engineering Textbook Solutions
Engineering Mechanics: Statics & Dynamics (14th Edition)
Applied Fluid Mechanics (7th Edition)
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
Mechanics of Materials (10th Edition)
- The spool has a mass of 150 kg and a radius of gyration of Kç = 240 mm about its centre of mass G. The coefficients of static and kinetic friction between the rail and the spool are us = 0.2 and µk = 0.15, respectively. If a vertical force of P = 400N is applied to the cable, determine the frictional force at the contact between the spool and the rail and whether the spool slips. 300 mm G 150 min Rail Parrow_forward*17-108. The semicircular disk having a mass of 10 kg is rotating at w = 4 rad/s at the instant e = 60°. If the coefficient of static friction at A is µ, = 0.5, determine if the disk slips at this instant. 4 (0.4) Зп 0.4 marrow_forward17-111. The semicircular disk having a mass of 10 kg is rotating at w = 4 rad/s at the instant 0 = 60°. If the coefficient of static friction at A is µ, = 0.5, determine if the disk slips at this instant. 4 (0.4) Зп 0.4 marrow_forward
- The handcart has a mass of 200 kg and center of mass at G. Determine the largest magnitude of force P that can be applied to the handle so that the wheels at A or B continue to maintain contact with the ground. Neglect the mass of the wheels. The normal reaction at Ais The normal reaction at B is The acceleration at Gis The greatest value of Pis #KN KN B Ge -0.3m-02 m-04 m- O 0.5 m Aarrow_forward17-47 The four-wheeler has a weight of 335 Ib and a center of gravity at G1, whereas the rider has a weight of 150 lb and a center of gravity at Gz. If the engine can develop enough torque to cause the rear wheels to slip, determine the largest coefficient of static friction between the rear wheels and the ground so that the vehicle will accelerate without tipping over. What is this maximum acceleration? In order to increase the acceleration, should the rider crouch down or sit up straight from the position shown? Explain. The front wheels are free to roll. Neglect the mass of the wheels in thearrow_forwardF18-5. If the uniform 30-kg slender rod starts from rest at the position shown, determine its angular velocity after it has rotated 4 revolutions. The forces remain perpendicular to the rod. 30 N 10.5 mTo.5 m 10.5 m 1.5 m 20 N-m 20 Narrow_forward
- B3arrow_forwardThe four-wheel-drive all-terrain vehicle has a mass of 300 kg with centre of mass G. If all four wheels (front and rear) are observed to spin momentarily as the driver attempts to go forward, vehicle reaches speed of 50 km/h after 60 m. At first determine the acceleration of this vehicle? Then if coefficient of friction between the tires and the ground is 0.40, determine the combined normal force at the pair of front tires. 805 mm 440 mm Figure 11 500 mmarrow_forward*17-36. The desk has a weight of 75 lb and a center of gravity at G. Determine the initial acceleration of a desk when the man applies enough force Fto overcome the static friction at A and B. Also, find the vertical reactions on each of the two legs at A and at B. The coefficients of static and kinetic friction at A and B are u, = 0.5 and ug = 0.2, respectively. 30° 1 ft 2 ft 2 ft- 2 ft-arrow_forward
- F17-17. The 200-kg spool has a radius of gyration about its mass center of kg = 300 mm. If the couple moment is applied to the spool and the coefficient of kinetic friction between the spool and the ground is He = 0.2, determine the angular acceleration of the spool, the acceleration of G and the tension in the cable. 0.4 m. 0.6 m M = 450 N-marrow_forwardThe 150-lb man lies against the cushion for which the coefficient of static friction is Hiy = 0.5. If he rotates about the z axis with a constant speed v = 30 ft/s, determine the smallest angle 0 of the cushion at which he will begin to slip off. -8 ftarrow_forward17-107. The truck carries the spool which has a weight of 200 lb and a radius of gyration of kg = 2 ft. Determine the angular acceleration of the spool if it is not tied down on the truck and the truck begins to accelerate at 5 ft/s². The coefficients of static and kinetic friction between the spool and the truck bed are g = 0.15 and μ = 0.1, respectively. Problems 17-106/107 CO 3 ftarrow_forward
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY